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Recognised as Colour

#2A5BBF

  • #2A5BBF
  • Blue
  • Dark
  • Nearest: Royal blue

#2A5BBF is a blue with RGB values 42, 91, 191 and HSL 220°, 64%, 46%. It is a dark colour, so white text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#2A5BBF#2A5BBF
HEX#2A5BBF
RGBrgb(42, 91, 191)
RGB (0–1)0.1647, 0.3569, 0.749
RGB percentages16.5%, 35.7%, 74.9%
HSLhsl(220.3, 63.9%, 45.7%)
HSV / HSBhsv(220.3, 78%, 74.9%)
CMYK78%, 52.4%, 0%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,775,999
CSS custom property--colour: #2A5BBF;

Brightness & contrast

Relative luminance0.11736WCAG 2.x, 0 is black and 1 is white
Perceived brightness97.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.27:1
Contrast with white6.27:1WCAG normal text: AA
Contrast with black3.35:1WCAG normal text: Fail
Greyscale equivalent#585858
Inverted#D5A440

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1467C3no red cones; affects about 1% of men; ΔE 9.1 from the original
Deuteranopia#005ABDno green cones; the most common form, about 1% of men; ΔE 3.2 from the original
Tritanopia#007384no blue cones; rare, and affects men and women equally; ΔE 57.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.27:1WCAG large text: AAA
Contrast with black, large text3.35:1WCAG large text: AA

Named colours

Royal blue · ΔE 12.5Slate blue · ΔE 16.8Dark slateblue · ΔE 19.1Dodgerblue · ΔE 22Medium purple · ΔE 23.2Cornflower blue · ΔE 24.9
Nearest named CSS colourRoyal blue (#4169E1)ΔE 12.46, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BF8E2A
Analogous#2AA6BF, #442ABF
Triadic#BF2A5B, #5BBF2A
Split complementary#BF432A, #A6BF2A
Tetradic#BF2AA5, #BF8E2A, #2ABF43

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C3D3F2
Lighter +30%#99B3E9
Lighter +20%#7094DF
Lighter +10%#4675D6
Darker −10%#214795
Darker −20%#18336B
Darker −30%#0E1F42
Darker −40%#050B18
More saturated +25%#0D51DC
Less saturated −25%#4765A2

Channel breakdown

R42
G91
B191
Red42 (16.5%)
Green91 (35.7%)
Blue191 (74.9%)
Hue220.27°
Saturation (HSL)63.95%
Lightness45.69%
Dominant channelBlue
Hex per channelR 2A · G 5B · B BF

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Every value on this page was computed from “2a5bbf” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.